I am trying to install skype to ubuntu and all methods which I use didn't resolve this error

This software comes from a 3-rd party and may contain non-free components error

In command line I have got error like this

You might want to run 'apt-get -f install' to correct these:
The following packages have unmet dependencies:
google-chrome-stable : Depends: libpango1.0-0 (>= 1.14.0) but it is not going to be installed
Depends: libappindicator1 but it is not going to be installed
ubuntu-restricted-extras : Depends: ubuntu-restricted-addons but it is not going to be installed
Recommends: ttf-mscorefonts-installer but it is not going to be installed
Recommends: unrar but it is not going to be installed
Recommends: libavcodec-extra
E: Unmet dependencies. Try 'apt-get -f install' with no packages (or specify a solution).

I try to install gdebi installer, and have got error too

sudo apt install gdebi

Error:

Reading package lists... Done
Building dependency tree
Reading state information... Done
You might want to run 'apt-get -f install' to correct these:
The following packages have unmet dependencies:
gdebi : Depends: gdebi-core (= 0.9.5.7ubuntu1) but it is not going to be installed
Depends: gksu but it is not going to be installed
Depends: gnome-icon-theme but it is not going to be installed
Recommends: libgtk2-perl but it is not going to be installed
google-chrome-stable : Depends: libpango1.0-0 (>= 1.14.0) but it is not going to be installed
Depends: libappindicator1 but it is not going to be installed
E: Unmet dependencies. Try 'apt-get -f install' with no packages (or specify a solution).

LAMP stack is a group of open source software used to get web servers up and running. The acronym stands for Linux, Apache, MySQL, and PHP. Since the virtual private server is already running Ubuntu, the linux part is taken care of. Here is how to install the rest.

Set Up

The steps in this tutorial require the user to have root privileges on your VPS. You can see how to set that up in the Initial Server Setup in steps 3 and 4.

Step One—Install Apache

Apache is a free open source software which runs over 50% of the world’s web servers.

During the installation, MySQL will ask you to set a root password. If you miss the chance to set the password while the program is installing, it is very easy to set the password later from within the MySQL shell.

Once you have installed MySQL, we should activate it with this command:

sudo mysql_install_db

Finish up by running the MySQL set up script:

sudo /usr/bin/mysql_secure_installation

The prompt will ask you for your current root password.

Type it in.

Enter current password for root (enter for none):

OK, successfully used password, moving on...

Then the prompt will ask you if you want to change the root password. Go ahead and choose N and move on to the next steps.

It’s easiest just to say Yes to all the options. At the end, MySQL will reload and implement the new changes.

By default, a MySQL installation has an anonymous user, allowing anyone
to log into MySQL without having to have a user account created for
them. This is intended only for testing, and to make the installation
go a bit smoother. You should remove them before moving into a
production environment.

Remove anonymous users? [Y/n] y
... Success!

Normally, root should only be allowed to connect from 'localhost'. This
ensures that someone cannot guess at the root password from the network.

Disallow root login remotely? [Y/n] y
... Success!

By default, MySQL comes with a database named 'test' that anyone can
access. This is also intended only for testing, and should be removed
before moving into a production environment.